From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932973Ab2ASUaV (ORCPT ); Thu, 19 Jan 2012 15:30:21 -0500 Received: from terminus.zytor.com ([198.137.202.10]:37976 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932705Ab2ASUaU (ORCPT ); Thu, 19 Jan 2012 15:30:20 -0500 Message-ID: <4F187D54.602@zytor.com> Date: Thu, 19 Jan 2012 12:30:12 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111115 Thunderbird/8.0 MIME-Version: 1.0 To: Linus Torvalds CC: "Kasatkin, Dmitry" , device-mapper development , LKML , "H. Peter Anvin" Subject: Re: dmsetup fails on latest kernel References: <4F187980.2000306@zytor.com> In-Reply-To: X-Enigmail-Version: 1.3.3 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/19/2012 12:17 PM, Linus Torvalds wrote: > On Thu, Jan 19, 2012 at 12:13 PM, H. Peter Anvin wrote: >> Could you please send me: >> >> a) your full strace; >> b) arch/x86/kernel/syscall_32.o from your build? > > Btw, the strace before-and-after (working vs nonworking) would > probably be useful. They aren't easily comparable (all the random > pointers change depending on allocations etc), but some scripting and > editing out pointer values might make the difference be obvious. > > Linus Possible. I have actually reproduced it and reduced it to a small test case already, so I hopefully will have it nailed down soon. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.